Table Bc05: Mussel species collected in the Niangua Watershed

Table Bc05: Mussel species collected in the Niangua Watershed.
Scientific Name Common Name Federal Status State Status State Rank Global Rank
Actinonaias l. carinata Mucket
Alasmidonta marginata Elk toe * S2? G4
Alasmidonta viridis Slipper shell
Amblema plicata Threeridge
Anondata grandis Giant floater R
Anondata suborbiculata Flat floater S2 G5
Corbicula fluminea Asian clam 1
Cyclonaias tuberculata Purple wartyback
Cyprogenia aberti Western fanshell * S2? G2
Elliptio dilatata Ladyfinger
Epioblasma triquetra Snuffbox * S1 G3
Fusconaia flava Wabash pigtoe
Lampsilis radiata Fat mucket
Lampsilis reeviana Britts shell
Lampsilis ventricosa Pocketbook
Lasmigona costata Fluted shell
Lasmigona complanata White heelsplitter
Leptodea fragilis Fragile papershell
Ligumia subrostrata Pond mussel
Megalonaias nervosa Washboard
Obliquaria reflexa Three horn
Pleurobema sintoxia Round pigtoe
Potamilus alatus Pink heelsplitter
Potamilus ohioensis Pink paper shell
Ptychobranchus occidentalis Kidney-shell * S2S3 G3G4
Quadrula metanevra Monkeyface
Quadrula pustulosa Pimpleback
Quadrula quadrula Mapleleaf
Strophitus undulatus Squawfoot
Toxolasma parvus Lilliput
Tritogonia verrucosa Buckhorn (Pistol-grip)
Truncilla truncata Deertoe
Truncilla donaciformis Fawns foot
Venustaconcha ellipsiformis Ellipse

1 Introduced species

Federal Status

E = Endangered

T = Threatened

C = Candidate for listing

* = Formerly listed as C2 (candidate for listing). This category was dropped in 1996.

E = Endangered

NOTE: All other classifications were dropped in 1998.

State Rank

Numerical rank of relative indangerment for the species within the state based on the number of known occurrences.

S1 = Critically imperiled in the state because of extreme rarity or because of some factor(s) making it especiallly vulnerable to extirpation from the state.

S2 = Imperiled in the state because of rarity or because some factor(s) making it very vulnerable to extirpation from the state.

S3 = Rare or uncommon in the state.

S4 = Widespread, abundant, and apparently secure in the state, but of long-term concern.

S5 = Demonstrably widespread, abundant, and secure in the state, and essentially eradicable under present conditions.

S#S# =Indicates range of uncertainty of the exact numerical ranking for the species.

? = denotes ranking which is uncertain.

Global Rank

Numerical ranking of relative endangerment for the species worldwide. The categories are similar to those listed above for State Rank.

Key Messages: 

Conservation pays by enriching our economy and quality of life.

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